Washington Ornamental Iron Works
Active WDID 4 19I001830 Carson, Los Angeles County Region 4 · Los Angeles
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Carson, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Dominguez Channel (as reported by the facility)
- Evidence: candidate, awaiting review Details
- Identified receiving water on the 2026 303(d) list
- Not established
- Shown only when the reported receiving water is identified and corroborated.
- 2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
- None
- Monitoring results Evidence: facility-reported
- 300 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 16, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 8 violation records · 4 enforcement actions
- Counts as published in SMARTS; not a compliance determination · Details
Each label shows where a statement comes from. How to read the labels.
Overview and location
Reported facility location HUC12 watershed Corroborated receiving water 2026 Integrated Report waterbodies nearby
Reported location Evidence: facility-reported
- Coordinates
- 33.86771, -118.27852
- Precision
- 5 decimal places
- Shared point
- No
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 17926 S Broadway St, Carson 90248
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Lower Dominguez Channel HUC12 180701060102
The facility's reported location lies within this HUC12 watershed (spatial derivation); it is not a discharge location.
Permits and applications Evidence: SMARTS record
Current permit record
- Permit type
- Industrial
- Application type
- Notice of Intent (WDID code I)
- Status
- Active
- Operator
- Washington Ornamental Iron Works
- Primary industry (SIC)
- 3441-Fabricated Structural Metal
- Secondary SIC
- 3446-Architectural and Ornamental Metal Work
- Application ID
- 188866
- NOI processed
- Mar 30, 1992
- Last certified
- Jun 18, 2015
- Facility size
- 6 Acres
- Impervious area
- 90 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 188866 | Industrial | Active | Mar 30, 1992 | — | Jun 18, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Dominguez Channel
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
Evidence: not confirmed Evidence: candidate, awaiting review Awaiting review
Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.
Why it is not confirmed (1)
- C1 name is only a prefix of official names
2 official waterbodies share this name; none is assigned without review.
Impaired waters and TMDLs
Two kinds of information, kept apart: 2026 Integrated Report waterbodies near the reported location (geographic proximity only), and TMDL records that SMARTS lists for this facility. Neither establishes where the facility discharges; see Receiving water for the facility's own statement.
Nearby waterbodies Evidence: geographic proximity
Spatial proximity only; discharge pathway not established. Being near a waterbody does not mean the facility discharges to it.
No 2026 Integrated Report waterbody lies within the proximity threshold of the reported location.
SMARTS TMDL records Evidence: SMARTS-reported
SMARTS TMDL record as reported for this facility; it is not a determination that the TMDL applies to the facility.
| TMDL | Waterbody (as reported) | Parameter | Limit | Type | Period | Due | Discharges to TMDL water |
|---|---|---|---|---|---|---|---|
| R4 - Los Angeles and Long Beach Harbor Waters TMDL | Dominguez Channel Estuary | Lead, Total | .221 mg/L | TMDL NAL instantaneous | FINAL | 2032-05-05 | Y |
| R4 - Los Angeles and Long Beach Harbor Waters TMDL | Dominguez Channel Estuary | Zinc, Total | .095 mg/L | TMDL NAL instantaneous | FINAL | 2032-05-05 | Y |
2 records. Links between these records and specific TMDL projects or listed waterbodies have not been reviewed and are not shown.
Reported monitoring results Evidence: facility-reported
Numeric Action Level (NAL) screening is being independently validated and is not shown. Nothing on this page states whether a result exceeded a NAL.
300 distinct measurements across 10 parameters, most recent sample Feb 16, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 21 | 7 | 0 | Oct 14, 2025 | Feb 16, 2026 |
| 2024 | 21 | 7 | 0 | Feb 05, 2025 | Mar 11, 2025 |
| 2023 | 15 | 8 | 0 | Dec 20, 2023 | Mar 06, 2024 |
| 2022 | 40 | 8 | 0 | Dec 02, 2022 | Mar 29, 2023 |
| 2021 | 35 | 10 | 0 | Dec 14, 2021 | Mar 28, 2022 |
| 2020 | 16 | 8 | 0 | Dec 28, 2020 | Jan 29, 2021 |
| 2019 | 24 | 8 | 0 | Dec 04, 2019 | Mar 16, 2020 |
| 2018 | 32 | 8 | 0 | Dec 05, 2018 | Mar 06, 2019 |
| 2017 | 32 | 8 | 0 | Jan 09, 2018 | Mar 21, 2018 |
| 2016 | 32 | 8 | 0 | Dec 16, 2016 | May 08, 2017 |
| 2015 | 32 | 8 | 0 | Dec 22, 2015 | May 06, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total Recoverable | mg/L | 38 | 7 | Dec 22, 2015 | Feb 16, 2026 | Results |
| Iron, Total Recoverable | mg/L | 38 | 1 | Dec 22, 2015 | Feb 16, 2026 | Results |
| Lead, Total Recoverable | mg/L | 38 | 22 | Dec 22, 2015 | Feb 16, 2026 | Results |
| Oil and Grease | mg/L | 38 | 28 | Dec 22, 2015 | Feb 16, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 38 | 21 | Dec 22, 2015 | Feb 16, 2026 | Results |
| Zinc, Total Recoverable | mg/L | 38 | 0 | Dec 22, 2015 | Feb 16, 2026 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 37 | 0 | Dec 22, 2015 | Feb 16, 2026 | Results |
| pH | SU | 31 | 0 | Dec 22, 2015 | Dec 20, 2023 | Results |
| Nitrate, Total (as N) | mg/L | 2 | 0 | Dec 14, 2021 | Mar 28, 2022 | Results |
| Nitrite, Total (as N) | mg/L | 2 | 1 | Dec 14, 2021 | Mar 28, 2022 | Results |
All results (300 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 16, 2026 | Aluminum, Total Recoverable | .05 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367364 | |
| Feb 16, 2026 | Iron, Total Recoverable | .13 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1367364 | |
| Feb 16, 2026 | Lead, Total Recoverable | .00118 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367364 | |
| Feb 16, 2026 | Nitrite Plus Nitrate (as N) | .28 | mg/L | Effluent | Qualifying Storm Event | A4500NOF | 1367364 | |
| Feb 16, 2026 | Oil and Grease | ND 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1367364 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1367364 | |
| Feb 16, 2026 | Zinc, Total Recoverable | .23 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367364 | |
| Nov 20, 2025 | Aluminum, Total Recoverable | ND .034 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1360722 | |
| Nov 20, 2025 | Iron, Total Recoverable | .057 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1360722 | |
| Nov 20, 2025 | Lead, Total Recoverable | .00071 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1360722 | |
| Nov 20, 2025 | Nitrite Plus Nitrate (as N) | .25 | mg/L | Effluent | Qualifying Storm Event | A4500NOF | 1360722 | |
| Nov 20, 2025 | Oil and Grease | ND 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1360722 | |
| Nov 20, 2025 | Total Suspended Solids (TSS) | 1.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1360722 | |
| Nov 20, 2025 | Zinc, Total Recoverable | .126 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1360722 | |
| Oct 14, 2025 | Aluminum, Total Recoverable | .096 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1354794 | |
| Oct 14, 2025 | Iron, Total Recoverable | .21 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1354794 | |
| Oct 14, 2025 | Lead, Total Recoverable | .00135 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1354794 | |
| Oct 14, 2025 | Nitrite Plus Nitrate (as N) | .3 | mg/L | Effluent | Qualifying Storm Event | A4500NOF | 1354794 | |
| Oct 14, 2025 | Oil and Grease | ND 1.9 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1354794 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1354794 | |
| Oct 14, 2025 | Zinc, Total Recoverable | .154 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1354794 | |
| Mar 11, 2025 | Aluminum, Total Recoverable | .12 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332426 | |
| Mar 11, 2025 | Iron, Total Recoverable | .098 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1332426 | |
| Mar 11, 2025 | Lead, Total Recoverable | .0013 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332426 | |
| Mar 11, 2025 | Nitrite Plus Nitrate (as N) | 1.3 | mg/L | Effluent | Qualifying Storm Event | A4500NOF | 1332426 | |
| Mar 11, 2025 | Oil and Grease | ND 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1332426 | |
| Mar 11, 2025 | Total Suspended Solids (TSS) | 9.7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1332426 | |
| Mar 11, 2025 | Zinc, Total Recoverable | .17 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332426 | |
| Feb 12, 2025 | Aluminum, Total Recoverable | .13 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332425 | |
| Feb 12, 2025 | Iron, Total Recoverable | .14 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1332425 | |
| Feb 12, 2025 | Lead, Total Recoverable | .00086 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332425 | |
| Feb 12, 2025 | Nitrite Plus Nitrate (as N) | 1.5 | mg/L | Effluent | Qualifying Storm Event | A4500NOF | 1332425 | |
| Feb 12, 2025 | Oil and Grease | ND 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1332425 | |
| Feb 12, 2025 | Total Suspended Solids (TSS) | 1.7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1332425 | |
| Feb 12, 2025 | Zinc, Total Recoverable | .29 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332425 | |
| Feb 05, 2025 | Aluminum, Total Recoverable | .15 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332424 | |
| Feb 05, 2025 | Iron, Total Recoverable | .31 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1332424 | |
| Feb 05, 2025 | Lead, Total Recoverable | .00093 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332424 | |
| Feb 05, 2025 | Nitrite Plus Nitrate (as N) | 1.5 | mg/L | Effluent | Qualifying Storm Event | A4500NOF | 1332424 | |
| Feb 05, 2025 | Oil and Grease | ND 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1332424 | |
| Feb 05, 2025 | Total Suspended Solids (TSS) | 2.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1332424 | |
| Feb 05, 2025 | Zinc, Total Recoverable | .2 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332424 | |
| Mar 06, 2024 | Aluminum, Total Recoverable | ND .034 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1284949 | |
| Mar 06, 2024 | Iron, Total Recoverable | .11 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1284949 | |
| Mar 06, 2024 | Lead, Total Recoverable | .00056 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1284949 | |
| Mar 06, 2024 | Nitrite Plus Nitrate (as N) | .34 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1284949 | |
| Mar 06, 2024 | Oil and Grease | ND .72 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1284949 | |
| Mar 06, 2024 | Total Suspended Solids (TSS) | ND 5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1284949 | |
| Mar 06, 2024 | Zinc, Total Recoverable | .096 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1284949 | |
| Dec 20, 2023 | Aluminum, Total Recoverable | .062 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1274297 |
Results are shown exactly as reported by the discharger. Identical rows repeated in the State's export are shown once. Where the export contains different versions of the same sample and parameter, each version is listed and flagged. Details.
Compliance and enforcement records Evidence: SMARTS record
These are records as the State Water Board publishes them in SMARTS, with the source's own types and statuses. They are not a compliance determination or rating. A record listed here is not proof of a violation beyond what the source states, and the absence of records does not establish compliance.
| Record type | Records | As published | Dates | Retrieved | List |
|---|---|---|---|---|---|
| Violations | 8 | 8 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 1999 – Jun 02, 2022 | Oct 21, 2026 | All violations |
| Enforcement actions | 4 | 4 issued · 0 draft · 0 withdrawn, rescinded or superseded | Feb 22, 2002 – Jun 02, 2022 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | Jan 15, 2002 – Mar 17, 2015 | Oct 21, 2026 | All inspections |
| Annual reports | 11 | certified reports (contents not shown) | 2015 – 2025 | Oct 21, 2026 | All reports |
| Water-quality-based corrective action reports | 0 | reports, by parameter | — | Oct 21, 2026 |
Each record type is counted by its own SMARTS identifier. A violation and the enforcement action that cites it are two records in two lists; they are never added together.
Chronological record history (26 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 02, 1999 | Violations | 153251 | Deficient Report | Violation | Inspection |
Sources and provenance
| Information | Source | Retrieved or published |
|---|---|---|
| Permit, location, receiving-water text | SMARTS Industrial Application Specific Data | Oct 20, 2026 |
| Permit history | SMARTS Storm Water Applications | Oct 20, 2026 |
| Monitoring results | SMARTS Industrial Parameter Data | Oct 20, 2026 |
| Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12) | USGS | 2026-10-22 |
| 2026 California Integrated Report, Appendix A: 2026 303(d) List (final) | SWRCB | 2026-10-22 |
| Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0) | SWRCB GIS | 2026-10-22 |
| SMARTS TMDL requirements | SMARTS | 2026-10-21 |
Relationships computed 2026-10-22 with methods facility_huc12/1, proximity/1, receiving_water/2, tmdl_reference/1, waterbody_huc12_ovl/1, waterbody_huc12_pub/1; proximity threshold 1.0 km.
How to read the evidence labels
- Evidence: SMARTS record Evidence: facility-reported Information as published in SMARTS or reported by the discharger.
- Evidence: identification corroborated The reported receiving-water name identifies one official waterbody and the facility's location is consistent with it. It does not establish a discharge pathway.
- Evidence: candidate, awaiting review Evidence: not confirmed The reported name could match one or more official waterbodies, but no identification has been confirmed; nothing is assigned without review.
- Evidence: spatial Evidence: geographic proximity Derived from the reported location only.
- Evidence: SMARTS-reported Source records whose links to official references are not yet reviewed.
- Evidence: unavailable The information could not be loaded or is not in the sources.
Records are shown as published and are not compliance determinations. How geographic context is derived.